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做ADC测试时，我引脚什么都不接，实际观测到那脚位输入是18.79mv，还可以接受，然后在序列阜视窗看转换后值是17500微伏;
但问题来了，当我引脚接地时，实际观测到那脚位输入也是18.79mv，接着在序列阜视窗看转换后值是1056微伏。
请问同样是接0伏，为什么会有这样转换的差异?
请问是哪颗芯片啊？软件调用的是什么接口？
我用cc1310的晶片，我是用TI里面的adcBufContinuousSampling例程做修改的，脚位部分只有更动：
adcBuf = ADCBuf_open(CC1310_LAUNCHXL_ADC0 , &adcBufParams);
...
continuousConversion.adcChannel = 2; //让IOID_25做ADC引脚
您好 可以尝试使用driverlib里面的ADC_convertRawToMicroVolts函数试一下
文档参考
file:///C:/ti/simplelink_cc13x0_sdk_1_50_00_08/docs/tidrivers/doxygen/html/_a_d_c_8h.html
谢谢，另外我也想请问说假如我要使用所有的ADC引脚，由A0-A7，并使用ADCBUF的文档来连续侦测，
我启用ADC
而引脚的选择是由通道决定的吗
const ADCBufCC26XX_AdcChannelLutEntry ADCBufCC26XX_adcChannelLut[CC1310_LAUNCHXL_ADCBUF0CHANNELCOUNT] = {
{CC1310_LAUNCHXL_DIO23_ANALOG, ADC_COMPB_IN_AUXIO7}, {CC1310_LAUNCHXL_DIO24_ANALOG, ADC_COMPB_IN_AUXIO6}, {CC1310_LAUNCHXL_DIO25_ANALOG, ADC_COMPB_IN_AUXIO5}, {CC1310_LAUNCHXL_DIO26_ANALOG, ADC_COMPB_IN_AUXIO4}, {CC1310_LAUNCHXL_DIO27_ANALOG, ADC_COMPB_IN_AUXIO3}, {CC1310_LAUNCHXL_DIO28_ANALOG, ADC_COMPB_IN_AUXIO2}, {CC1310_LAUNCHXL_DIO29_ANALOG, ADC_COMPB_IN_AUXIO1}, {CC1310_LAUNCHXL_DIO30_ANALOG, ADC_COMPB_IN_AUXIO0}, {PIN_UNASSIGNED, ADC_COMPB_IN_VDDS}, {PIN_UNASSIGNED, ADC_COMPB_IN_DCOUPL}, {PIN_UNASSIGNED, ADC_COMPB_IN_VSS},};
请问我的理解是否有错？
